[freeside-users] Error during fresh install

[Dickie]

I am getting the following error on a fresh install of 3.9 on wheezy,  
has anyone else seen this of have an idea how to rectify it?

error using FS::part_event::Condition::has_cust_payby_auto (skipping): 
Can't locate object method "cust_payby2shortname" via package 
"FS::payby" at 
/usr/local/share/perl/5.20.2/FS/part_event/Condition/has_cust_payby_auto.pm 
line 13.
Compilation failed in require at (eval 189) line 1.
BEGIN failed--compilation aborted at (eval 189) line 1.


Thnx
Dickie